Arroyo, S. R. (1987). English for college freshmen. Rex Book Store.
Cita Chicago (17th ed.)Arroyo, Sandra Rodriguez. English for College Freshmen. Manila: Rex Book Store, 1987.
Cita MLA (9th ed.)Arroyo, Sandra Rodriguez. English for College Freshmen. Rex Book Store, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.